NCT01106976

Brief Summary

The purpose of this research is to evaluate changes in cholinergic brain activity over time in subjects with Parkinson disease.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
67

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started May 2010

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 14, 2010

Completed
6 days until next milestone

First Posted

Study publicly available on registry

April 20, 2010

Completed
11 days until next milestone

Study Start

First participant enrolled

May 1, 2010

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2014

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2015

Completed
11 months until next milestone

Results Posted

Study results publicly available

February 1, 2016

Completed
Last Updated

February 1, 2016

Status Verified

December 1, 2015

Enrollment Period

4.3 years

First QC Date

April 14, 2010

Results QC Date

November 6, 2015

Last Update Submit

December 23, 2015

Conditions

Keywords

PETacetylcholine

Outcome Measures

Primary Outcomes (1)

  • AChE PET Neuroimaging

    AChE PMP PET hydrolysis rate outcome measure. AChE \[11C\]PMP hydrolysis rates (k3) were estimated using the striatal volume of interest (defined by manual tracing on the MRI scan of the putamen and caudate nucleus) as the tissue reference for the integral of the precursor delivery. This measure is a proxy measure for the count of cholinergic nerve terminals in the basal forebrain innervation the cortical mantle.

    4 yr

Study Arms (1)

Group 1 Parkinson disease subjects

Subjects with Parkinson disease who previously participate in a motor and brain PET (brain positron emission tomography) imaging study who were invited for a longitudinal observational study.

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Recruited in previous study

You may qualify if:

  • Patients who meet the UK Parkinson's Disease Society Brain Bank Research Center clinical diagnostic criteria for PD.
  • Hoehn and Yahr stages 1-2.5 at initial recruitment in baseline study.
  • Absence of dementia confirmed by neuropsychological testing at initial recruitment in baseline study.

You may not qualify if:

  • contra-indication for magnetic resonance study
  • Pregnancy or breastfeeding

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

VA Ann Arbor Healthcare System, Ann Arbor, MI

Ann Arbor, Michigan, 48105, United States

Location

Related Publications (3)

  • Bohnen NI, Frey KA, Studenski S, Kotagal V, Koeppe RA, Scott PJ, Albin RL, Muller ML. Gait speed in Parkinson disease correlates with cholinergic degeneration. Neurology. 2013 Oct 29;81(18):1611-6. doi: 10.1212/WNL.0b013e3182a9f558. Epub 2013 Sep 27.

  • Muller ML, Albin RL, Kotagal V, Koeppe RA, Scott PJ, Frey KA, Bohnen NI. Thalamic cholinergic innervation and postural sensory integration function in Parkinson's disease. Brain. 2013 Nov;136(Pt 11):3282-9. doi: 10.1093/brain/awt247. Epub 2013 Sep 20.

  • Kotagal V, Albin RL, Muller ML, Koeppe RA, Frey KA, Bohnen NI. Diabetes is associated with postural instability and gait difficulty in Parkinson disease. Parkinsonism Relat Disord. 2013 May;19(5):522-6. doi: 10.1016/j.parkreldis.2013.01.016. Epub 2013 Feb 23.

Biospecimen

Retention: NONE RETAINED

Saliva

MeSH Terms

Conditions

Parkinson Disease

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative Diseases

Limitations and Caveats

Observational study.

Results Point of Contact

Title
Nicolaas Bohnen
Organization
VAAAHS

Study Officials

  • Nicolaas I Bohnen, MD PhD

    VA Ann Arbor Healthcare System, Ann Arbor, MI

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
FED
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 14, 2010

First Posted

April 20, 2010

Study Start

May 1, 2010

Primary Completion

September 1, 2014

Study Completion

March 1, 2015

Last Updated

February 1, 2016

Results First Posted

February 1, 2016

Record last verified: 2015-12

Locations